Biology, 21.04.2020 02:07, andyyandere8765

Although birds and mammals descended from differentancestors, they both have a four-chambered heart. Thisis the result of:
A) the necessity for rapid movement of blood.
B) convergent evolution.
C) genetic aberrations that resulted from mistakes insomatic cell division.
D) the simplification of the cardiovascular system

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Although birds and mammals descended from differentancestors, they both have a four-chambered heart....